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GaryK [48]
2 years ago
13

Shirts are 5% off. The original price of one shirt is $15. What is the total cost, in dollars, of a shirt at the sale price, inc

luding a 10% sales tax​
Mathematics
1 answer:
Juliette [100K]2 years ago
8 0

Answer:

$15.75

Step-by-step explanation:

\frac{y}{15} :\frac{5}{100}

y × 100 = 5 × 15

100y = 75

100y ÷ 100 = 75 ÷ 100

y = 0.75

$15 - $0.75

$14.25

\frac{y}{15} :\frac{10}{100}

y × 100 = 10 × 15

100y = 150

100y ÷ 100 = 150 ÷ 100

y = 1.5

$14.25 + $1.50

$15.75

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Write the equation of a line that passws through the point (1,7) and is perpendicular to y=1/2x-5
Firdavs [7]

Answer:

y=-2x+5

Step-by-step explanation:

For one line to be perpendicular to another, their slopes must multiply to -1. So, we really want the line with slope $-1/(1/2)$ = -2$ that passes through the point (1, 7).

Recall the point-slope form of a line. If you have a point $(x_{1}, y_{1})$ and a slope m, the line through that point with the given slope is $y-y_{1}=m(x-x_{1})$. Plugging in our given point and slope gives our line: y-7=-2(x-1)(point-slope form).

We can convert this line to slope-intercept form, the most common form by expanding the right side and adding 7 to get y by itself:

y-7=-2x+2

y=-2x+5

5 0
2 years ago
There are 5 questions listed below. Each question includes:
Tom [10]

a. 22. 79 - amount

b. 129   -   amount

c. 358. 3  - base

d. 40. 65%  - percent

e. 2. 58% - percent

<h3>How to determine the values</h3>

It is important to note that a percentage is the number or ratio expressed as a fraction of 100.

It is denoted using the percent sign, "%"

a. What number is 53% of 43

= 53/ 100 × 43

= 0. 53 × 43

= 22. 79

b. 43% of 300

= 43/ 100 × 300

= 129

c. 12% of what number is 43

12/ 100 × x = 43

x = 43 × 100/ 12

x = 358. 3

d. 43 is what percent of 106

43/106 × 100/ 1

4300×/ 106

40. 5%

e. What percent of 43 is 6

43/ 100 × 6

2.58%

Thus, the percentage of a value is that value divided by 100

Learn more about percentage here:

brainly.com/question/24877689

#SPJ1

6 0
1 year ago
is anyone good at math here!??!!??!?!?!?!??!?!?!?!? please don't scroll please answerrrrrrrrrrrrrr this for meeeeeeeeeeeeeeeeeee
riadik2000 [5.3K]
I think its B I’m not 100% sure tho
3 0
3 years ago
Simplify the expression (-7)2.<br><br><br>-14<br><br>49<br><br>-49<br><br>14<br>OwO
MissTica

Answer:

-14

Step-by-step explanation:

-7*2= -14

8 0
2 years ago
Read 2 more answers
Rename the number: 120,00=_______ten thousands
Oliga [24]
1.2 ten thousands
is my opinion
5 0
3 years ago
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